Lubricating device.



R. B. SHRYOGK. LUBRIOATING DEVICE.

APPLICATION FILED SEPT. 25, 1913.

1,101, 474."' v Patented June23,1914..

m 1H i W a K li obey zfiljoik controlled according to the temperature of thermostatically controlled by'means of a metal'coil within the oil cup and operatlvely fication.

mostat of well known construction compris- .ROBERT B. snaYocx, or KANSAS CITY, MISSOURI.

LUBRICATING' DEVICE.

Specification of Letters Patent. 1 Patntefi Jung 2.3, 1914 Application filed September a5, 1913; Serial No. 791,739

T0 at whom it may concern:

Be it known that I, ROBERT B. SHkYOCK, a g citizen of the United States, residing at Kansas City, in the county of Jackson and i State of Missouri, have invented certain new and useful Improvements in Lubricating Devices, of which the following is a spec1-- This invention relates to lubricating devices and particularly to that class of lubr1- caters inwhich the feed is automatically the bearing being lubricated.

My object is to provide an improved device of this character in which the feed is connected with the valve.

With this end in-view the invention consists in certain novel and peculiar features of construction and organization as hereinafter described and claimed; and in order that it may be fully understood reference is i to be had to the accompanying drawing, in which Figure l, is a vertical section through the device taken along the lin3"II of Fig. 2. Fig. 2 is a horizontal section along the line. II-II of Fig. 1. Fig. 3 is a vertical section along the line III- HI of Fig. 2, 'with the upper portion of the oil cup broken away. Fig. 4 is a sectional detail along the line IV of Fig. 2. v

In thedrawing, I illustrate the structure of my device as comprising an oil cup having cap and base plates 2 and 4, respectively, clamping between them a glass ring 6, the joints being sealed by gasket-s 8. The plate 4 is provided on its upper surface with a central boss 10 surrounding which is a thering a strip 12 of material or materials in coil form and adapted to expand spirally as heat is transmitted thereto. The inner coil of this thermostat is riveted to angle pieces 14 which latter are clamped to the boss-10 by the base of post 16, this post being secured by screws 18 to the boss 10, and pro vided with a nut 20 where it passes through the cap plate whereby the parts are firmly secured together. The base plate is provided cent-rally with an oil passage 22 controlled by a rotary valve plug 24 which is carried on trunnions formed on screw studs 26 carried by plates 28 secured to oppositel sides of the boss 10. One end of the valve plug isprovided with a crank pinf-JO, the outer end of which is connected by a coil spring 32 with the plate 34: secured to the upper edge of one of the plates 28, said spring holding the pin 30 normallyagainst adjustable stop screw 36 carried by lug 38 projecting laterally from one of the plates 28 in which position of the crank pin the valve is closed. Secured to the top face of the boss 10 by screws 40, is a plate 42 to which is pivoted at 441-, a lever 46. One end of the lever projects into position to engage the crank pin 30 while the 'opposite end of said lever extends into abutting relation with the free end of a pin 48 which is screwed into a bracket 50 secured by screws 52 to the outer end. of the coil 12, said pin 48 being locked in proper adjustmentby a jam nut 54-. From this construction it will be understood that upon the expansion of the coil 12 the lever 46 will beoperatedto rotate the valve and thereby open the latter.

To the threaded boss 56formedon the bottom face of the base plate, is secured a nipple 58 whereby the device is secured to the bearing to be lubricated, said nipple having openings 60 and a sight tube 62 clamped in engagement with the boss 56. This nipple and the base plate are preferably constructed of copper or brass or some other good heat conducting metal.

I or regulating the rate of feed, I provide a valve 64 which controls the passage through which the oil passes on its way from the valve 24 to the bearing; valve '64 being locked after adjustment bythe set screw 66;

- As above indicated the valve 24 is held normally closed by the spring 32, but as the temperature of the bearing rises, the heat is transmitted to and thereby expands the coil 12 and operates the lever 46 to rotate the valve. This expansion of the coil and rotation of the valve will of course be in proportion to the rise in temperature and consequently the lubricating process is accurately regulated to meet the requirement of the bearing.

From the foregoing it will be apparent that I have produced a lubricating device embodying the features of advantage enumerated as desirable. in the statement of the object of the invention, and I wish it to be understood that while I have illustrated and described onepreferred form of my invention, I reserve the right to make all changes falling within the scope of the appended claims. v

I claim 1'. In an automatic lubricating device, an oil cup having an oil discharge opening, a valve controlling said opening, a swing arni to operate the valve, a-the'rmostat, a lever,

and means actuated by the thermostat to cause said lever to-operate and actuate the swing arm to open the valve.

2. In an automatic lubricating device, an oil cup having an oil discharge opening, a valve controlling said opening, swing arm to operate the valve, a thermostat, a lever, means actuated by the thermostat tocause said lever to operate and actuate the swing arm to open the valve, and'a spring engaging said swing arm to effect the return of the valve to closed position when the thermostat contra' cts.

3. In an automatic lubricating device, an oil on having a discharge opening and a boss a o und the opening, a helical thermostat around and secured at its inner end to the; boss, a valve in the boss to control. saidopening, a swing-arm movable with the v lve, a .lever to operate said arm, mean whereby expansion of the thermostat shall perate the lever and cause the same to ac uate the arm toopen the valve and contr ction of the thermostat shall relieve the l ver of force tending to open the valve, and ielding means toeffect the return of the valve and lever to their initial positions when the thermostat contracts. k

4. In an automatic lubricating device, an oil ,cup having an oil discharge opening, a

' .bos's formed around said'discharge opening,

a rotary valve plug mounted in said boss for,

controlling said open'ing,-said valve plug being provided with a crank pin, a thermostat secured to said .boss, and connections between said thermostat and, said crank pin whereby expansion of the thermostat will rotate said valve plu'g. I 5. In an automaticv lubricating device, an oil cup having an oil discharge opening, a boss formed around said discharge opening, a rotary valve plug mounted in said boss for controlling said opening, said valve plug being provided with a crank pin, a spring engaging said pin and acting to hold said valve yieldingly closed, a thermostat secured. to said boss, and a lever connecting said thermostat and. crank pin whereby expansion of thethermostat will operate to open said valve against the action of said spring.

6. In an" automatic lubricating device, an

oil cup having an oil discharge opening, a

boss formedaround said discharge opening,

a rotary valve plug mounted in said boss for 1 controllingisaid opening, said valve plug being provided with a crank pin, a spring i engaging said pin and acting to hold said valve yieldingly closed, 'a thermostat coil surrounding said boss and secured thereto, a

lever pivotally supported upon said boss and having one end extending in position to engage said crank pin and swingthe latter against the action of said spring, and an adjustable pin carried by the free end of said coillin position to engage the other end-of said lever, .ivhereby expansion of-said coil will operate through said lever and-crank pin to open the valve.

In testimony whereof, I aifix my signature, in the presence of two witnesses.

' ROBERT B. SI-IRYOOK. Witnesses: H. C. RODGERS,

G; Y. THORPE. 

